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Old September 14th 03, 07:00 PM posted to sci.geo.meteorology
Allan Myhara Allan Myhara is offline
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First recorded activity by Weather-Banter: Sep 2003
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Default Isabel's interesting eye

William Ricker wrote in message ...
The six little vortices form a perfect pentagon around the
center.


Er, wouldn't there be a hexagon, if there were six vortices?


No, see Roller-bearing idea ... one in center, and 5 around.


I just made some rough calculations about the windspeed in the eyewall
using the figure from the National Hurricane Center that the eye has a
diameter of 40 nautical miles and by estimation of the speed of the
rotation of features within the eye. I get 160 knots.

Allan